Changed assign_attribute so that fields with a different inflected na…

…me (e.g. capital letters) get casted too

For instance: if you have a field called 'ThisIsADate' it would not become a datetime object.
If the old array_key_exists check fails, a second check is done using the inflected name.

lib/Model.php

@@ -436,10 +436,15 @@ public function __wakeup()
 	public function assign_attribute($name, $value)
 	{
 		$table = static::table();
-
-		if (array_key_exists($name,$table->columns) && !is_object($value))
+		if (array_key_exists($name,$table->columns) && !is_object($value)){
 			$value = $table->columns[$name]->cast($value,static::connection());
-
+		}else{		
+			$col = $table->get_column_by_inflected_name($name);
+			if (!is_null($col) && !is_object($value)){
+				$value = $col->cast($value,static::connection());
+			}
+		}
+
 		// convert php's \DateTime to ours
 		if ($value instanceof \DateTime)
 			$value = new DateTime($value->format('Y-m-d H:i:s T'));